EPA Method 8240A Volatile Standard #1 Back Catalog number: 82401 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676872 Cyclopentanone, 1ml Price on request 2785.12-100-IO 3,3'-Dichlorobenzidine, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 91-94-1 Price on request 93011 Stearic acid butyl ester Price on request